Reversing the order of words in String

StringWordReversal.java

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class StringReversal2 {

	public static void main(String[] args) {
		
		Scanner sc=new Scanner(System.in);
		String input=sc.nextLine();
		List<String>words=new ArrayList<String>();		
		
		int position=-9;
		while( (position=input.lastIndexOf(' '))!= -1  ){
			words.add(input.substring(position+1));
			System.out.print(words+" ");
			input=input.substring(0,position);
			System.out.println("Input :"+input);
		}
		words.add(input);
		System.out.println(words);

	}

}